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C.V.D. 방법에 의한 Cd_0.78Zn_0.22 S박막 성장과 광전기적 특성연구
유상하,이상렬,홍광준,서상석,김혜숙,전승룡,윤은희,문종대 조선대학교 기초과학연구소 1993 自然科學硏究 Vol.16 No.1
We had grown Cd_0.78Zn_0.22S polycrystal thin films on slide substrate using chemical vapour deposition(CVD) method. We measured X-ray diffraction patterns in order to study Cd_0.78Zn_0.22S polycrystal structure. We studied its band gap using transmission curves and photocurrent and also analyzed photoluminescence using configurational coordinate model. We measured Hall effect·on this sample by Van der Pauw method and studied on carrier density and mobility depending on temperature.
n-CdS/P-Si Heterojunction 태양전지 제작 및 전기적 특성에 관한 연구
柳相河,洪光俊 조선대학교 기초과학연구소 1985 自然科學硏究 Vol.8 No.1
CdS thin films were deposited by chemical bath deposition method. The CdS thin films have simple cubic structure with lattice constant 5.818 A and polycrystalline with orientation (111), (220) and (311). n-CdS/p-Si heterojunition solar cells are fabricated, depositing n-CdS thin films on p-Si substrates with orientation (422) by chemical bath depositing method. Under 80mW/㎠ condition the parameters for the typical cell were as followed; open circuit voltage V_oc=0.53V, short circuit current I_sc=11.3mA, fill factor FF=0.35 and conversion efficiency η=2.62%.
n-CdS_(0.46)Se_(0.54)/p-Cu_92-x)S_(0.46)Se_(0.54) 이종접합 태양전지의 제작과 그 특성에 관한 연구
유상하,최승평,이상열,홍광준,서상석,김혜숙,전승룡,윤은희,문종대,신영진,정태수,신현길,김택성,유기수 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-
승화방법에 의해 CdS_0.46Se_0.54 단결정을 성장하여 결정구조를 조사하고, Van der Pauw 방법으로 Hall effect를 측정하여 carrier density의 온도 의존성과 mobility의 온도 의존성을 조사하였다. 성장된 CdS_0.46Se_0.54 단결정을 치환반응하여 n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 이종접합 태양전지를 제작하였다. Spectral response, 전류-전압특성 및 전력변환 효율을 조사하여 그 결과로부터 개방전압은 0.48V, 단락 전류 밀도는 21mA/㎠, fill factor와 전력변환효율은 각각 0.75와 9.5%를 얻었다. CdS_0.46Se_0.54 single crystal was grown by a sublimation method. The crystal structure and the temperature dependence of carrier density and mobility of CdS_0.46Se_0.54 single crystal were studied. Heterojunction solar cells on n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 were fabricated by the substitution reaction. The spectral response, the J-U characteristics and the conversion efficiency of the n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 heterojunction solar cells were studied. The open-cricuit voltage, short-circuit density, fill factor and conversion efficiency of n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 heterojunction solar cells under 80mW/㎠ illumination were found to be 0.48V, 21mA/㎠, 0.75 and 9.5%, respectively.
金在浩,李光培,金玄郁,劉忠烈,河載承,裵振勝 明知大學校 産業技術硏究所 2008 産業技術硏究所論文集 Vol.27 No.-
Recently, Wire-rireless combination study is being studied very actively with the advent of Ubiquitous environment, using wireless device such as PDA, Cellular Phone loading multi-hop communication that connects wired internet network very easily and controls the system and shares the information in anyplace. The past algorithm, wired and wireless combination that connect between Ad Hoc Network and wired network is being focused only on the study of heterogeneous network interface. The proposed algorithm established independent multi-path between source node and destination node to prevent data loss when errors happen in route. The proposed algorithm established independent multi-path between source node and destination node to prevent data loss, and trasmitted data packet to destination node very quickly and promoted network reliabiliy when errors happen in route.
宋東勳,裵振勝,鄭燦赫,吳世德,李基源,劉忠烈,河載承,李光培,金玄郁 명지대학교 산업기술연구소 2005 産業技術硏究所論文集 Vol.24 No.-
With rapid growth of the internet, need for the mobile communication networks is increasing. In this paper, we implement and test Mobile IP Protocol in Embedded System. Our Mobile IP-based testbed consisted of two sub-networks and each sub-network was configured to operate independently through use of router. To satisfy integrated wired/wireless network model established on the testbed design and show generality of the testbed, we implemented mobile nodes, home agent, foreign agent and router on the basis of Linux operating system. As the results of the evaluation, we confirmed that mobile nodes operated properly according to Mobile IP Protocol.
하유정 ( You Jung Ha ),정상윤 ( Sang Youn Jung ),이광훈 ( Kwang Hoon Lee ),최준정 ( Jun Jung Choi ),이광길 ( Kwang Kil Lee ),이수곤 ( Soo Kon Lee ),박용범 ( Yong Beom Park ) 대한류마티스학회 2009 대한류마티스학회지 Vol.16 No.4
Dermatomyositis is a rare inflammatory myopathy with characteristic skin manifestations and accompanied by muscular weakness. Vesicle formation in dermatomyositis is rare. We report a case of dermatomyositis associated with ovarian cancer in a 62-year-old woman who had vesicles and bullae on her arms. She had erythema and edema on the face, chest, abdomen, and shoulder for 2 months. Diagnosis of dermatomyositis was established by clinical manifestations, muscle enzyme elevation, and a characteristic electromyogram. She was successfully treated with cyclosporin and high doses of steroids.
( Kwang Hoon Lee ),( Myoung Kyun Son ),( You Jung Ha ),( Sang Tae Choi ),( Sang Won Lee ),( Yong Beom Park ),( Soo Kon Lee ) 대한내과학회 2010 The Korean Journal of Internal Medicine Vol.25 No.2
Psoriatic arthritis (PsA) is an inflammatory arthritis associated with psoriasis. There are no generally accepted diagnostic criteria for PsA. Indeed, the diagnosis of this inflammatory arthritis is made by exclusion of other possible diseases and based upon immunologic, radiologic, and clinical features which are consistent with the diagnosis. Inflammatory arthritis in a patient with psoriasis can be an important clue for the diagnosis of PsA, but the possibility for diagnosis of other inflammatory arthritides ever remains. Herein we report a case of a female patient who was not diagnosed with PsA, but with rheumatoid arthritis, even though she had psoriasis. (Korean J Intern Med 2010;25:224-226)